REMKO RWK 260 - Manual (Page 16)

16
Functional check and test run
To ensure that the unit is functioning properly, a func-
tional check must be performed to identify any irregu-
larities during unit operation before the unit is handed
over to the operator.
This check is dependent on the installed outdoor unit.
These procedures are documented in the operating in-
structions of the outdoor unit in use. The compressor starts a couple of minutes later
due to the delayed start.
Cooling operation test run
Perform a test run for cooling operation as follows:
1. Switch the main switch or fuse on.
2. Adjust the target temperature on the indoor unit to a
lower value than the existing room temperature us-
ing the remote control.
3. Switch the unit to cooling mode with the remote con-
trol.
Before starting the test runs, follow the instructions be-
low:
1. Remove the caps from the valves.
2. To begin initial operation, briefly open the shut-off
valves until the manometer displays pressure meas-
uring approx. 2 bar.
3. Check all established connections for leaks using
leak locator spray or suitable devices.
4. If you did not find any leaks, open the shut-off valves
by turning them all the way counter-clockwise with a
hexagonal wrench.
5. If you find leaks, the connection must be re-
established.
It is absolutely necessary to create a new vacuum
and dry the unit!
The functional tests are started via the indoor unit.
The following must be checked:
Check refrigerant pipes for leaks.
Check that the fan and compressor are running
smoothly.
Conduct a functional test of the indoor unit and all
program processes.
Check the surface temperature of the suction pipe
and determine the evaporator overheating value.
To measure the temperature, hold the thermometer on
the suction pipe and subtract the boiling point tem-
perature recorded on the manometer from the meas-
ured temperature.
Initial Operation
Once all components have been connected and
checked, the unit can be put into operation. Initial opera-
tion must be performed using the certificate and must be
documented.
Following initial operation, the operator must be trained
in its operation and the initial operation log given to him.
4. Check that cold air is being expelled from the indoor
unit and warm air from the outdoor unit.
5. During the test run, check all regulating, control and
safety mechanisms to ensure that they are function-
ing and set properly.
6. Check the indoor unit’s control mechanisms using the
functions described in the operating instructions.
Timer, temperature settings, fan mode and dehu-
midifying mode as well as all other mode settings.
7. Measure overheating, outside, inside, outlet and
evaporation temperatures and enter these values in
the initial operation log.
Prior to Initial Operation
After the pressure check has been performed and a
vacuum is created (see the “Initial Operation” chapter),
the following checks must be performed:
Check that the condensation drains properly.
Check that the additional components function prop-
erly.
Condensation pumps, etc.
Check the refrigerant pipes and the insulation for
damage.
Check that the electrical connection between the in-
door unit and the outdoor unit has the correct polar-
ity.
Check all fixtures and suspended parts to ensure
that they are in the proper position and at the correct
height.